% Encoding: UTF8
@INPROCEEDINGS{uim2003.1.022,
title = {Mathematical model and some nonlinear effects of heat and mass transfer in multiphase
media under action of high-frequency electromagnetic radiation},
author = {Kislitsin, A.A.},
booktitle = {Труды Института механики Уфимского научного центра РАН. Вып. 3.},
year = {2003},
editor = {Ильгамов, М.А. and Нигматулин, Р.И. and Хабиров, С.В.},
pages = {276--287},
publisher = {Уфа: Гилем},
abstract = {The application of high-frequency electromagnetic radiation is one of the
promisingmethods inoilandgas technologies,that canbewell usefor struggleagainst
pitch, paraffin or gas-hydrate fall-out in wells and in pipelines, for action on
reservoir and for other purposes. During in the operation of wells on their
surfaces the asphalt-pitch-paraffinfall-out areoccurs causedof lowingof temperature
and pressure. These fall-out fills the space between pipes, that bring to a stop of
well sometimes. The high-frequency electromagnetic heating is convenient mean (and
the only possible way in some cases) to eliminate these complications. By that the
experiments and the numerical simulation shows, that some nonlinear effects are
possible. These effects are caused due to some media have temperature dependence
of absorption coefficient. This dependence can be have more or less expressed
”resonance“ view, to say have maximum by certain temperature. The position, height
and width of that ”resonance“ dependences of electromagnetic radiation frequency
and of dielectric properties of medium. These nonlinear properties can be used to
rise of heating efficiency. If the radiation frequency is correct, one can to
realize the heating in a ”temperature wave“ regime, that essentially rises the
velocity of heating. And what is more, if one will use the nonlinear dependences
α(T), one can to realize a ”reverse temperature wave“, that will move backwards:
from far end of tube to the source of radiation, i.e. one can receive effects,
those are impossible by usual conditions. Inthispaperthe temperaturedependence of
absorption coefficient is investigated and the mathematical modelling of
high-frequency electromagnetic heating (with due regard for this dependence) is
carried out.},
keywords = {mathematical model, nonlinear effects, multiphase media, electromagnetic radiation},
doi = {10.21662/uim2003.1.022},
url = {http://proc.uimech.org/uim2003.1.022}
}